White panel for lighting
OSRAM Opto Semiconductors GmbH has successfully developed an organic EL panel for general illumination that emits white light. The panel size is 90 cm2, and the chromaticity of white light in the CIE chromaticity diagram is (0.396, 0.404). The luminous efficiency at a luminance of 1000 cd/m 2 was 20 lm/W. The life span is 20,000 hours (before the brightness half-life).
The white organic EL panel developed this time is transparent when it is not illuminated. The light transmittance when not emitting light is currently 55%, but it is expected to increase to 75% through improvement.
The specific date of production has not been determined. However, "the sample is scheduled to be delivered within 2 years" (Osram Optoelectronics).
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